>>> president obama urges seizing this moment to overhaul our nation's immigration laws. >> now is the time to find a better way to welcome the striving, hopeful immigrants who still see america as the land of opportunity. >> what does this mean for california? from the central valley to silicon valley? >>> and san francisco implements a controversial law. it enables court-ordered treatment for mentally ill patients at risk of becoming violent. >> these folks are a danger to themselves and to others. >>> plus, the 49ers gear up for the super bowl. a report from new orleans. coming up next. >>> good evening. i'm viviana ritado. welcome to "this week in northern california." what happens or doesn't happen in washington on immigration this year will have a big impact here in california. president obama pressed congress to pass within the next six months comprehensive immigration reform. he addressed this issue in las vegas on tuesday. >> if congress is unable to move forward in a timely fashion, i will send up a bill based on my proposal and insist that they vote on it right away.